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The momentum dependences of the nuclear spin polarization P and alignment A of 13B(Iπ = 3/2+, T1/2 = 17.36 ms) produced in the 100A MeV 15N + Be collisions have been measured by detecting β-ray asymmetry. Because both the P and A were significantly smaller than the prediction from a simple kinematical model, some relaxation mechanisms must be take into account. Comparing the...
The electric quadrupole coupling constants eqQ/h of 8B (Iπ = 2+, T1/2 = 769 ms) and 13B (Iπ = 3/2−, T1/2 = 17.4 ms) in single crystal TiO2 have been precisely measured by the β-NQR technique. The ratios of these Q moments to Q(12B) were determined as |Q(8B)/Q(12B)| = 4.882(32) and |Q(13B)/Q(12B)| = 2.768(24).
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